On the future review

function main() {
    var coin = exchanges[0].GetCurrency().toLowerCase(); //获取币种
    var Aaccount = GetAccount(0);
    var obj = JSON.parse(exchanges[0].GetRawJSON()); //最后一次调用api的详细信息
    var quanyinew = obj.info[coin].rights;
    Log(exchange.GetAccount(),quanyinew);
}

No problem with the disk, TypeError: Cannot read property btc of undefined.

Do you know how to find the rights and benefits of an account?